WEBVTT SAYS IT DID A PRELIMINARYINVESTIGATION, AND FOUND THEOFFICER WAS IN THE WRONG.HE'S NOW ON PAID ADMINISTRATIVELEAVE.TOYA: AND EASTER SUNDAY THREATTO CHURCHES AND WAUKESHA COUNTY.GEORGE GOT BASIC OUT THEDETAILS.JOYCE: THE WAUKESHA COUNTYSHERIFF'S OFFICE IS THEY AREINVESTIGATING A THREAT TOCHURCHES IN THE SUSSEX AREA.THEY RECEIVED A LETTER IN THEMAIL FROM THE PERSON WHO CLAIMTO BE THE WANTED FUGITIVE.THE LETTER MAKES UNSPECIFIEDTHREATS OF VIOLENCE ON EASTERSUNDAY.AT THIS TIME, PLEASE CANNOT

A written threat against unspecified churches in the Sussex area was sent via US Mail by someone purporting to be Joseph Jakubowski, the Wisconsin man who authorities say has made anti-religious and anti-government comments before he burglarized a Janesville gun shop, Waukesha County Sheriff Eric Severson said in a statement.

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In his statement sent via email to the media, Severson said his officials have been unable to substantiate the threat nor the letter's author.

"We ask that all citizens of Waukesha County be vigilant and report any suspicious activity," he said. "This information is being disseminated as a precaution in the interest of public safety."

Jakubowski, of Janesville, has been on the run since April 4 when officials say broke into The Armageddon Gun Shop and stole 18 weapons and other items before setting his vehicle on fire. A 161-page manifesto he mailed to President Trump has been received by the White House and is still being analyzed, authorities said.

Earlier Thursday, Rock County officials pleaded with Jakubowski to turn himself in, and they urged residents to be extra vigilant during the holy weekend.